cpp-useful-iterators/test/recursive_iterator_nested_map.t.h

//
//  recursive_iterator_nested_map.t.h
//  iterator
//
//  Created by Sam Jaffe on 2/18/17.
//

#pragma once

#include <cxxtest/TestSuite.h>

#include "recursive_iterator.hpp"

class recursive_iterator_nested_map_TestSuite : public CxxTest::TestSuite {
public:
  void test_map_iterator_matches_size() {
    std::map<int, int> const map{{1, 1}, {2, 2}, {3, 3}};
    auto rit = make_recursive_iterator(map);
    decltype(rit) end{ };
    TS_ASSERT_EQUALS(std::distance(rit, end), map.size());
  }
  
  void test_map_iterator_matches_data() {
    std::map<int, int> const map{{1, 1}, {2, 2}, {3, 3}};
    auto rit = make_recursive_iterator(map);
    for (auto it = map.begin(), end = map.end(); it != end; ++it, ++rit) {
      TS_ASSERT_EQUALS(*it, *rit);
    }
  }
  
  void test_map_iterator_can_edit_data() {
    std::map<int, int> map{{1, 1}, {2, 2}, {3, 3}};
    auto rit = make_recursive_iterator(map);
    std::get<1>(*rit) = 4;
    TS_ASSERT_EQUALS(map[1], 4);
  }
  
  void test_map_map_iterator_matches_size() {
    std::map<int, std::map<int, int>> const map{{1, {{1, 1}}}, {2, {{2, 2}, {3, 3}}}};
    std::vector<std::tuple<int, int, int>> const expected{{1, 1, 1}, {2, 2, 2}, {2, 3, 3}};
    auto rit = make_recursive_iterator(map);
    decltype(rit) end{ };
    TS_ASSERT_EQUALS(std::distance(rit, end), expected.size());
  }
  
  void test_map_map_iterator_matches_data() {
    std::map<int, std::map<int, int>> const map{{1, {{1, 1}}}, {2, {{2, 2}, {3, 3}}}};
    std::vector<std::tuple<int, int, int>> const expected{{1, 1, 1}, {2, 2, 2}, {2, 3, 3}};
    auto rit = make_recursive_iterator(map);
    for (auto it = expected.begin(), end = expected.end(); it != end; ++it, ++rit) {
      TS_ASSERT_EQUALS(std::tuple_cat(*it), *rit);
    }
  }
  
  void test_map_map_iterator_can_edit_data() {
    std::map<int, std::map<int, int>> map{{1, {{1, 1}}}, {2, {{2, 2}, {3, 3}}}};
    auto rit = make_recursive_iterator(map);
    std::get<2>(*rit) = 4;
    TS_ASSERT_EQUALS(map[1][1], 4);
  }
  
  void test_map_map_bounded_matches_size() {
    std::map<int, std::map<int, int>> map{{1, {{1, 1}}}, {2, {{2, 2}, {3, 3}}}};
    auto rit = make_recursive_iterator<1>(map);
    decltype(rit) end{ };
    
    TS_ASSERT_EQUALS(std::distance(rit, end), map.size());
  }
  
  void test_map_map_bounded_matches_data() {
    std::map<int, std::map<int, int>> map{{1, {{1, 1}}}, {2, {{2, 2}, {3, 3}}}};
    auto rit = make_recursive_iterator<1>(map);
    
    for (auto it = map.begin(), end = map.end(); it != end; ++it, ++rit) {
      TS_ASSERT_EQUALS(*it, *rit);
    }
  }

};